We analyze the operation of 2× 2 switches composed of two coupled waveguides operating
on the basis of parity-time (PT) symmetry: the two waveguides differ through their gain or …

Cold atoms trapped in one-dimensional optical lattices and driven to the four-level N
configuration are exploited for achieving an electromagnetically induced grating with parity …

We consider wave transport phenomena in a PT-symmetric extension of the periodically
kicked quantum rotator model and reveal that dynamical localization assists the unbroken …

Fraunhofer light diffraction across a thin two-dimensional lattice of cold atoms subject to
transverse hybrid modulations of two standing-wave crossed pump fields is seen to yield …

We consider nonlinear dynamics in a finite parity-time-symmetric chain of the discrete
nonlinear Schrödinger (dNLS) type. For arbitrary values of the gain and loss parameter, we …

We investigate topological features of a one-dimensional photonic quasicrystal within the
context of PT symmetry. Via the scattering characteristics, we analyze various properties of a …

This work introduces a new class of PT-symmetry grating assisted devices for switching or
modulation applications. Their operation is based on a four-wave interaction, thus marking a …

In the present work we examine both the linear and nonlinear properties of two related parity-
time (PT)-symmetric systems of the discrete nonlinear Schrödinger (dNLS) type. First, we …

We study the diffraction produced by a PT-symmetric volume Bragg grating that combines
modulation of refractive index and gain/loss of the same periodicity with a quarter-period …

We analyze the scattering properties of a parity-time (PT)-symmetric structure made of a
waveguide and a finite chain of side-coupled resonators. Typical one-dimensional PT …